About: http://webisa.webdatacommons.org/322147015

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Besides silicon oxide, a metal oxide such as titanium oxide, a polymer such as polymethyl-methacrylate, an organic substance, glass or a transparent electrically-conductive material is also preferably used for similar reasons.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com